Electric railway



(Numdam.

1H. GUEST. ELECTRIC RAILWAY.

No. 59,1198.v Patentea'Apr. 9, 1895.

n Qin UNITED STATES l PATENT Duuren.

JOHN H. GUEST, OF BQSTON, MASSACHUSETTS.

ELECTRIC RAILWAY.

SPECIFICATION forming part ef Letters Patent No. 537,198, dated April 9, 1895.

Application iiled August 9,1894.

.To all whom it may concern).- Be it known that I, JOHN H. GUEST, a citi zen of the United States, and a resident of Boston, in the county of Suffolk and State of working conductor at one part of the system,

the'supply to a working conductor or section of working conductor at another pointwhether on the same or a crossing or branch line may be automatically cut off. The invention consists essentially i'n mak- Ing the working conductor Vfrom which the motor takes up current, movable laterally either in a horizontal or a vertical plane and in cutting off the supply of current to the deslred section or sections by means operated. or controlled by the movement of said conductor produced by or accompanying its engagement bythe trolley or collector in the actof taking up current.

A convenient and preferred way of carrying out the invention is to provide an insulated contact stop for the working conductor,v

and tocarry the supply for the section of conductor, when the supply is to be controlled, through said insulated contact stop. When the working conductor is moved laterally at the time current is being taken from it, it is moved away from said stop and the connection is thereby broken.

The invention, as will be obvious, admits of many modications all alike in that the movement of' the conductor is made to con- V trol directly or indirectly the supply to another section.

As illustratingone way of carrying out Ymy invention I have shown its application to a laterally movable conductor actuated by a magnet as described in my prior application for patent filed J une 18, 1894, Serial No. 514,873. In this application of my invention the movement of the conductor into4 engagement with the trolley by the influence of the magnet breaks the connection to the section of Working conductor which is to be made dead. A

In another application of `my invention, the working conductor being moved and held to Serial No. 519,836. (No model.)

one side by the mechanical action of the trolley in taking current therefrom, breaks the connection of another section.

My invention further consists in the construction and combination of parts as will hereinafter be fully described and pointed out in the claims.

In the accompanying drawings which form a part of' this specication, Figure l represents in vertical cross section,an electric railway conduit equipped with means for carrying out my invention. Fig. 2 represents a longitudinal section of a portion of such conduit. Fig. 3 represents in cross section a modified construction and arrangement of parts embodying my invention. Fig. 4 represents a cross section of a closed conduit showing another modification, and Fig. 5 represent-s a longitudinal section thereof.

In the drawings A, indicates the working conductor which is represented divided into sections as l, 2, 3, 4. B, is the feeder from which taps are shown lead-ing to sections ot' said conductor, as to sections 3 and 4. lIn the neighborhood of certain sections, as 3 and 4, suitable contacts such as the posts or pins C, D, are located for engagement with sections of the conductor. From these contacts conductors as 6,7, are led to other sections of the working conductor which have 'no direct connection -with the feeder. In Vthe drawings, the contact C, is shown as connected to section l, and contact D, to section 2. The contacts between the sections of theworkin g conductor and these posts or pins may be controlled in various ways. In Figs. l and 2, I have shown the sections of the working conductor mounted to move laterally in a horizontal plane and to be so moved by a magnet as E, carried on the trolley or collector arm F, as set forth in the application above TOO nearer than the second section. If travel be toward the left, a car taking current from section 3, will cause a car running onto sec.- ton l, to stop from loss of current and a car on section 4, will stop a caras it enters onto section 2.

I propose locating the sections such as 3 and 4, which are constructed to break circuit to other sections, at crossings, stations, short curves and other places where it is especially desirous to have additional safe guards against a following car or train running into those ahead.

The return conductor G, as indicated in Fig. l, may be constructed in the same man ner as the working conductor A, and if desired the connections through contact posts from one section `to another may also be the same as in connection with conductor A, though it is not essential that it should be so.

The trolley shown in Fig. l, is simply illustrative of any form of trolley or collector carrying a magnet to draw the conduetorinto engagement therewith. In this instance the trolley wheel is shown mounted in the polar extension o'f the magnet and from said extension current is led by a suitable conductor tothe motor and back to the return conductor G, through the other magnet of the trolley.

In Fig. 3, is represented one of the many ways which may be devised for the current collector to break circuit between one section and another of the working conductor. In this instance each section of the conductor is held out by a spring, as Il, so as to make goed contact with the trolley and to normally complete circuit to another section through a contact carried by such section and a contact as C', located in but insulated from the wall of the conduit. As thetrolley presses on a section it is forced back and circuit over conductor G, to the section with which it connects is broken as indicated in said figure.

In Figs. 4 and 5, a closed conduit is represented wherein the sections of the working conductor are normally at rest upon a bed of insulation and are attracted to the cap or trolley track by a magnet indicated at I. Certain sections of this conductor as 3 and 4t, are connected to the feeder B, and normally rest upon contact posts or pins C, D, located in the bottom of the conduit, which posts are connected as by conductors 6 and 7, respectively, with the feeder B. As section 3, for instance, is raised by the train magnet, contact with post C, is broken and section l, is cut. out of circuit.

By employing my invention in the above mentioned forms or in any other suitable manner producing the same result, a car or train while taking current continuously from the working conductor is enabled to cut out of circuit other portions of the same conductor and so prevent the flow of current to other cars or trains.

I have shown sections of the working conductor so mounted that by the attraction of a magnet;` carried by the trolley they would be moved into engagement with the trolley and at the same time break the circuit to another section. I have also shown such seetion moved aside by the trolley thereby eans- -ing it to break circuit to another section. I

have also shown such section lifted into engagement with a part traversed by the trolley and thereby causing a break in the circuit leading to another section. These are simply a few of the many ways of carrying out my invention, the gist of which resides in the construction and arrangement by which Iam enabled to move a section of live conductor by or into engagement with a trolley or cnrrent collector and in the same act break the circuit leading from the feeder through said section to another section.

I claim as my invention- 1. In an electric railway system, amovable working conductor, and means controlled by its movement, when a car takes current from it, for cutting off current from another section of conductor.

2. In an electric railway system, a laterally movable Working circuit conductor divided into sections one or more of which are connected to other sections, and a circuit breaker in such connections operated by the movement of said conductor.

3. In an electric railway system, the combination with a feeder, of a sectional working circuit conductor in which the sections are mounted to move laterally as a car takes current therefrom, connections between the feeder and certain sections of said conductor, and circuit breakers operated by the movement of said sections to break connection to other sections of working circuit conductor.

4c. In an electric railway system, the combination with a sectional working circuit conduetor each section of which is mounted to move laterally, of contacts normally in eugagement therewith, connections from said contacts to other sections of working conductor, and means carried by a car for moving the sections of conductor while taking current therefrom and breaking circuit at said contacts.

5. In an electric conduit railway, the combination of a plate conductor suspended in said conduit and divided into sections some of which are connected to the feeder, of contaets located to be normally engaged by said sections, conductors leading from said contaets to other sections of said conductor-,and a current collector which moves said sections out of engagement with said contacts when taking current from the sections so moved.

Signed at Boston, in the county of Suffolk and State of Massachusetts, this lst day of August, A. D. 1891.

.IOIIN II. GUEHT.

Witnesses:

HoMnR ALBERs, J. PORTER CROSBY.

IOC

IIC 

